[5] OPERATIONS AT NORTIIVILLE AND ALPENA. 979 



Of the above supply of eggs, 32,000,000 were hatched at Alpena, and 

 the remainder shipped to North ville, as it was much cheaper to ship the 

 eggs than the young fish, which would have to be sent to some railroad 

 point where the car could reach them. The larger part of the fry from 

 this station were planted along the west coast of Lake Huron, in the 

 vicinity of Thunder Bay. The first shipment, 2,000,000, were planted 

 off North Point in above bay, April 15. On the 17th 2,000,000 were 

 planted near Scare Crow Island, in said bay ; April 18, 2,000,000 near 

 Alcona; April 20, 4,000,000 near Round Island and the shoal reefs 5 

 April 21, 4,000,000 more went to Alcona ; April 23, 4,000,000 were sent 

 to Bay City by boat, whence they were taken by car to Apostle Islands, 

 Lake Superior, near Ashland, Wis. They were deposited on the 26th. 

 April 25, 2,000,000 were planted near Oscoda, Lake Huron ; April 27, 

 2,000,000 in Hammond's Bay ; April 29, 3,000,000 in Lake Huron, at 

 Ossineke and Harrisville ; April 30, 2,000,000 by boat to Saint Ignace, 

 and thence by baggage car to Marquette, Lake Superior, where they were 

 planted May 1 ; May 3, 4,000,000 were taken to Bay City, thence by car, 

 via Chicago, to Escanaba, Lake Michigan, reaching theii^destination on 

 the 6th. On May 4, 250,000 were planted in Taylor's Lake, inland, '4 

 miles from Alpena ; May 5, 500,000 near Sulphur Island, Thunder Bay ; 

 same day, 250,000 in Black River Lake, 12 miles inland from the village 

 of Black River, which closed the whitefish work at this station. 



THE TROUT^ WORK. 



The operations with trout are carried on quite extensively at this sta- 

 tion, where the cold spring water is well adapted to their growth. The 

 brood trout are kept in ponds, described in previous reports, adjacent 

 to the hatching-house. There are also a large number of wild trout of 

 both the brook and rainbow species in the stream — a branch of the river 

 Rouge — which runs near the hatchery. In the mill pond, a short dis- 

 tance below, we caught and obtained eggs from 33 female brook trout. 

 On examination of our trout in the ponds July 1, we found that the fry 

 and yearlings had grown very rapidly, and seemed to be larger for their 

 age than in any previous year. The usual work of sorting and counting 

 the fish was completed July 30, showing the following result: 



German trout fry in nursery tank (estimated) 1, 40O 



Land-locked salmon, fry 100 



Brook trout in tank in house, try 325 



Brook trout in pond C, fry 9, (597 



Brook trout in pond F, yearlings 1, 980 



Brook trout in pond D, two years old 573 



Brook trout in pond B, three and four years old 500 



Rainbow trout in pond H, fry 6, 000 



Rainbow trout in pond G, yearlings 2, 777 



Rainbow trout in pond E, two and three years 575 



Goldfish in pond A (estimated) 150 



Wliitefish in tank in house .,,.., , 280 



